US4009654A - Automatic modification of the print control in a printing device - Google Patents

Automatic modification of the print control in a printing device Download PDF

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Publication number
US4009654A
US4009654A US05/534,600 US53460074A US4009654A US 4009654 A US4009654 A US 4009654A US 53460074 A US53460074 A US 53460074A US 4009654 A US4009654 A US 4009654A
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United States
Prior art keywords
signals
column
characters
character
recording
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Expired - Lifetime
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US05/534,600
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English (en)
Inventor
Samuel C. Harris, Jr.
Terry L. Hewitt
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Genicom Corp
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General Electric Co
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Application filed by General Electric Co filed Critical General Electric Co
Priority to US05/534,600 priority Critical patent/US4009654A/en
Priority to CA241,895A priority patent/CA1056066A/fr
Priority to JP50150758A priority patent/JPS5847995B2/ja
Priority to US05/744,815 priority patent/US4144560A/en
Publication of US4009654A publication Critical patent/US4009654A/en
Application granted granted Critical
Assigned to GENICOM CORPORATION THE, reassignment GENICOM CORPORATION THE, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GENERAL ELECTRIC COMPANY A NY CORP.
Assigned to CHEMICAL BANK, A NY BANKING CORP. reassignment CHEMICAL BANK, A NY BANKING CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENICOM CORPORATION, A CORP. OF DE.
Assigned to GENICOM CORPORATION, A DE CORP. reassignment GENICOM CORPORATION, A DE CORP. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CHEMICAL BANK
Assigned to FIDELCOR BUSINESS CREDIT CORPORATION, A NY CORP. reassignment FIDELCOR BUSINESS CREDIT CORPORATION, A NY CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENICOM CORPORATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/30—Character or syllable selection controlled by recorded information

Definitions

  • the present invention relates to electronic data printers and more particularly to method and means for controlling the printing operation in accordance with the changes in the set of type characters used for printing.
  • printers There are a wide variety of printers shown in the prior art. There are slow printers such as those that print a single character at a time and high speed printers commonly referred to as line printers, as well as printers that print a partial line of characters at a time. Such printers have an ability to store in a memory the signals representing characters to be printed or recorded on a record medium. Input intelligence for each character desired to be printed is placed in storage in the memory and is used to select from a complete set of type characters for each print position the one desired to be operated for printing at that position. Reference may be made to U.S. Pat Nos. 3,314,360 dated Apr. 18, 1967; 3,366,045 dated Jan. 30, 1968; 2,874,634 dated Feb. 24, 1959; 2,936,704 dated May 17, 1960; 3,099,206 dated July 30, 1963 and 3,803,558 dated Apr. 9, 1974 which are representative of some of the art prior to Applicants' invention.
  • one object of the invention is to provide an improved apparatus for modifying the printing process being carried out by a printing system in accordance with changes in the number of type characters employed in a set or font of characters for the printing operation.
  • Another object of this invention is to provide an automatic method and apparatus for controlling printing operation in response to changes in the number of type characters employed in a set for printing.
  • Another object of this invention is to provide an improved method and apparatus for conveniently changing the printing speed of an electronic printer by an exchange of type carriers.
  • Another object of this invention is to provide an improved method and apparatus for detecting a change in the number of type characters associated with a set of such characters employed in a printing operation.
  • Another object of this invention is to provide an an improved method and apparatus for detecting a change in the number of type characters in the sets employed in a printing operation and for modifying the printing process to accommodate such change.
  • Another object of this invention is to provide an improved recording method and arrangement.
  • a printing arrangement for printing character signals available from a source in character serial form comprising means for producing a respective column signal for each input character signal to indicate the column in which such character signal is to be printed.
  • Type finger or type character signals are provided, indicative of the passage of each of a plurality of type fingers arranged in a plurality of identical sets of type fingers on a common carrier through the various column positions as the type fingers are moved in succession through the various column positions along a line of print.
  • Means are provided for algebraically combining the column signals with the finger signals to provide sum signals.
  • means are provided to sense type finger passage to identify the number of type fingers carried per set by the carrier.
  • means are provided for modifying the sum signals in response to the identical number of type fingers per set such that when the modified sum signals are compared with the character signals to produce control signals for controlling the printing, the proper type characters corresponding to the input character signals are operated at the appropriate column positions to effect printing.
  • FIG. 1 shows in block diagram form certain general considerations involved in a line printer employing a belt of type fingers wherein the invention would be applicable.
  • FIG. 2 illustrates in block diagram form features of the present invention particularly in their application to a line printer.
  • FIGS. 3, 3a-3c illustrate further in block diagram form certain details useful in explaining the operation of the present invention.
  • print control has two modes which exist in an alternating sequence.
  • a data load mode occurs initially and upon completion of data transfer or loading of data in memory from a source, the data load mode is followed by the print mode. When all data is printed, the load mode returns for another data transfer cycle.
  • the load mode data is presented in bit parallel, character serial form and it is strobed by a data strobe pulse and stored in a set of registers.
  • the system clock synchronizes the data strobe and the data is transferred to the print memory, such as a register. Characters are transferred through the register at a very high rate as compared to the printing rate. In one embodiment involving a printing rate of 120 lines per minute, data is entered into the register at a 60,000 character per second rate. This limit is determined by the synchronizing capability of the clock system employed.
  • a transfer pulse is developed and printing begins. Characters will be printed along the line in order in which they were received. When all characters have been printed an empty memory is detected and when a print complete signal is received, control is returned to the load mode.
  • FIG. 1 there is shown a generalized block diagram of one embodiment of the invention as applied to a line printer.
  • the input data characters received from a source 1 are applied over path 2 and stored in a print memory 3 which may be a shift register or other such storage device.
  • a print memory 3 which may be a shift register or other such storage device.
  • This involves storing a line or input data or characters at a time.
  • the data received from the source is stored in memory in the sequence in which it is to be printed along a line on a record medium such as by impact printing through an inked ribbon onto paper.
  • the printing mechanism itself generally involves providing relative movement between printing or type characters and the record medium. This may involve type characters or fingers carried by a drum or disk, belt, etc.
  • a comparator 10A responds to input data characters available over lead 8 from a memory source 3 and the column information on lead 9 associated with each input data character available on 8 as well as the column location of the individual type fingers on the rotating belt available on lead 11.
  • CC/2 arises from the fact that in the particular embodiment to be described, type fingers have twice the spacing of the columns for physical reasons.
  • the comparison is satisfied when a logic signal is produced indicating that the type finger at the given column location along a line on the record medium corresponding to the input data character desired to be printed at that location.
  • the comparator For each alignment of type characters with columns along a line on the record medium the comparator performs the aforesaid comparison for all of the input data characters stored in memory and produces an equal comparison signal on lead 18 for each character in memory for which a corresponding printing character is located at the column location where such data character is to be printed.
  • the equal compare signals available on 18 occur serially in the order in which the comparisons are carried out by comparator 10.
  • the equal compare signals available on lead 18 are applied to the hammer drive circuit 19.
  • Hammer drive circuit 19 comprises well known circuits which respond to equal compare signals to gate a drive signal to the hammer associated with the column selection signal available on lead 9 from source 5.
  • the hammer drive circuit thus drives selected printing characters carried by the belt into the record medium at an appropriate time.
  • each equal compare signal developed at that time preconditions a respective hammer located at the corresponding column position during a compare cycle.
  • a drive signal causes only all of those hammers preconditioned to be operated to simultaneously print characters at the selected column locations.
  • the equal comparison signal is employed to erase from storage the signal representing the character printed in order to enable subsequent characters representing signals to be stored for processing.
  • the data available from source 1 is applied to the circulating shift memory or signal storage register 3.
  • the source may comprise a computer, a telephone line or any other source of digital data.
  • the printers operate in a particular code format.
  • a popular code is the ASCII code which is a multi-level code wherein a character consists of several bits and a strobe pulse.
  • the data is applied in bit parallel, character serial form over lead 2 to the memory 3.
  • the data source 1 it is conventional for the data source 1 to provide a strobe signal on lead 4.
  • Clock pulses C available in line 7 are applied to memory 3.
  • the strobe signal available on 4 applied to memory 3 shifts the memory register during data loading and applied to column counter 5 increments the column counter 5 by one for each character.
  • column counter 5 under control of clock signals C provides column information for the particular data character appearing at the memory output line 8. Whatever data character appears on lead 8, its column location is defined by a signal available on lead 9 at the output of column counter 5.
  • the source of BC signals in one particular embodiment was a belt counter 12 which counts pulses from a photoelectric finger detector 13 which detects the passage of individual type or print character fingers F carried by a carrier C across a record medium M and past a photoelectric cell detector.
  • the output of detector 13 representing the passage of all individual fingers past a reference point located with respect to the moving belt or carrier when applied to belt counter 12 results in an up count.
  • the up count on lead 11 identifies the particular alignment of the type fingers carried by the belt.
  • the BC and CC signals available on leads 11 and 9 are applied to adder 14 where they are combined before the added signals are applied over lead 16, modifier 15 and lead 17A, and directly over lead 17B application on lead 16 as a to the comparator 10 as will be described shortly.
  • Comparator 10A also receives the input data character signal available on lead 8.
  • the processed output from 10A applied to fire circuit 10B is distributed over odd or even channels or lead 18 under control of the flip-flop 40.
  • Flip-flop 40 controlled by the odd and even signals received over lead 41 from detector 13 identifies whether the odd or even hammers are to be operated. Whenever an equal comparison result obtains, an equal comparison signal appears on lead 18.
  • This equal comparison signal is applied to the hammer drive circuit 19.
  • the hammer drive circuit 19 responds to the equal comparison signal available on lead 18 and the column count signal available on lead 9 from counter 5.
  • the hammer located at that particular column position is preconditioned to operate in response to drive signals available from a source not shown, if there also appears an equal compare signal at the lead 19.
  • the hammers are preconditioned during the compare cycle for firing during the drive cycle.
  • all of the hammers that were preconditioned are operated to cause simultaneous printing of the type characters located at the column locations associated with the characters to be printed.
  • a finger pulse signal is generated for each printing character passing a finger detector.
  • the drive period represents the period when the preconditioned hammers are energized to simultaneously print the appropriate characters during a particular column alignment of printing fingers.
  • the commutate period is the time between finger pulses when the hammer circuits are restored to their rest condition.
  • the compare period is the time when the type finger or character, data and column information are processed to generate equal compare signals to be used to control printing. Anything that is printed by the hammer drive circuit 19 during the drive cycle is erased from memory 3 in any well known manner, not shown.
  • the memory empty condition is sensed in any well known manner, not shown, to turn on the data source 1 and cause the next line of data characters to be introduced into memory under the control of the associated strobe signals.
  • the data source 1 had previously been turned off in response to a signal such as for example the column counter 5 output indicating that the memory has been filled.
  • the memory was designed to hold 132 columns of characters.
  • each character (ASCII encoded) is placed in a storage register with a column counter incremented by clock C such that the character code remains in synchronism with the number of the column in which the character is to be printed.
  • the printing operation commences.
  • Printing of a character requires that the type belt finger for the given character is in position over the corresponding column at the time the print hammer for that column is driven. Therefore the belt position, or belt count, is also required in order to enable a hammer fire.
  • This information is obtained by taking the odd and even belt finger signals from the belt finger detector and counting the number of fingers which have passed a reference point. These belt signals also cause the belt counter to be initialized at the beginning of each character set.
  • each of 96 character length for printing in a machine of 132 columns is:
  • the first step in the algorithm implementation is the addition BC + CC/2 in adder 14.
  • the CC/2 indicates that spacing of type fingers on the belt is twice the column spacing of the machine. This was done to accommodate finger and hammer physical requirements in one embodiment.
  • the original sum is then modified in 15 by subtracting the correct constant, K, in order to obtain the final sum CC/2 + BC - K.
  • the sum CC/2 + BC - K is modified in such a way that the final sum is maintained within the range of the character code number (32-127 for a 2-set belt and 32-95 for a 3-set belt).
  • the output from the set length detector 20 on lead 21 is used to select the appropriate final sum.
  • the detector is implemented by first setting flip-flop 22 at the beginning of each set via the reset signal on 27, from the counter 12. Flip-flip 22 is then cleared when the belt count detector 24 reaches a count which is greater than the maximum count reached for a 3-set belt (96) but less than the maximum count reached for a 2-set belt (127). In one embodiment, 100 is used as the value of the test count. Therefore, for a 2-set belt, flip-flop 22 will be cleared each time the belt count reaches 100 and this will cause flip-flop 25 to remain cleared, thus maintaining the output on lead 21 at logic level zero which is the state for indicating a 2-set belt.
  • the final sum, BC + CC/2 + K is then compared with the character code, CH in 10A, to determine whether the algorithm is satisfied and a hammer should be fired. If the algorithm is satisfied, the particular hammer to be fired is determined by decoding the column counter output and by using the odd/even belt finger signals on lead 26 to determine whether the odd columns or the even columns are to be fired (since there is only one belt finger for every two columns).
  • FIG. 2 illustrates one embodiment of the K-modifying logic. The operations are performed on 7-bit numbers which may be described briefly as follows.
  • adder -- 2-bit binary addition (for bits 6 and 7) producing a sum bit, S, and a carry bit, C.
  • the logic implementation follows from the truth tables which satisfy the algorithm equations for the two basic conditions of a 2-set belt of 96 characters each or a 3-set belt of 64 characters each.
  • the signal on 21 is a logic 0 for a 2-set belt and logic 1 for a 3-belt.
  • the first condition is that a belt count less than 32 cannot occur -- therefore the sum CC/2 + BC cannot be less than 32.
  • the 132 represents the maximum number of columns and the 127 represents the maximum belt count for the given number of fingers required for the ASCII code set which includes 32 through 127 for its printing characters. ##EQU2##
  • the truth tables can then be reduced in order to provide a logic implementation.
  • the logic implementation is achieved as follows.
  • FIG. 3A illustrates one embodiment for block 30
  • FIG. 3B illustrates one embodiment for block 31
  • FIG. 3C illustrates one embodiment for carrying out the functions of block 34.
  • means are provided to select the proper modification under control of the signal on line 21.
  • outputs of gates 36 and 37 are selected, namely the outputs of 31 and 30.
  • outputs of gates 34 and 31 are selected, namely the outputs of 34 and lead 32.
  • OR gates 39 and 40 provide modified bit signals for bits 6 and 7 positions.

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  • Record Information Processing For Printing (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Dot-Matrix Printers And Others (AREA)
US05/534,600 1974-12-20 1974-12-20 Automatic modification of the print control in a printing device Expired - Lifetime US4009654A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US05/534,600 US4009654A (en) 1974-12-20 1974-12-20 Automatic modification of the print control in a printing device
CA241,895A CA1056066A (fr) 1974-12-20 1975-12-11 Appareil de traitement de signaux
JP50150758A JPS5847995B2 (ja) 1974-12-20 1975-12-19 プリンタノインジセンタクソウチ
US05/744,815 US4144560A (en) 1974-12-20 1976-11-24 Adaptive control for signal processing

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Application Number Priority Date Filing Date Title
US05/534,600 US4009654A (en) 1974-12-20 1974-12-20 Automatic modification of the print control in a printing device

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082944A (en) * 1976-10-12 1978-04-04 Documation, Inc. Band timing generator
US4152981A (en) * 1977-06-03 1979-05-08 Computer Peripherals, Inc. Dual pitch impact printing mechanism and method
US4218754A (en) * 1978-03-29 1980-08-19 Data Printer Corporation Control of high speed printer by low speed microprocessor
US4235167A (en) * 1979-03-12 1980-11-25 Computer Peripherals, Inc. High speed dual pitch impact printer
US4413558A (en) * 1980-10-07 1983-11-08 Hitachi Koki Co., Ltd. Line printer and type carrier for use therein
US4737923A (en) * 1982-03-05 1988-04-12 Hitachi Koki Co., Ltd. Type arrangement data editing apparatus
US4940468A (en) * 1988-01-13 1990-07-10 Petillo Phillip J Apparatus for microsurgery
US20040060261A1 (en) * 2002-06-19 2004-04-01 Daniel Py Sterile filling machine having needle filling station within e-beam chamber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123468A (ja) * 1984-07-11 1986-01-31 Nippon Telegr & Teleph Corp <Ntt> 画像処理装置
KR102566401B1 (ko) * 2020-12-30 2023-08-14 제너럴바이오(주) 장수버섯 균사체, 잔나비 불로초버섯 균사체 및 감초 추출물을 유효성분으로 함유하는 미백 조성물

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850566A (en) * 1953-06-11 1958-09-02 Hughes Aircraft Co High-speed printing system
US3377622A (en) * 1965-04-20 1968-04-09 Gen Electric High speed printer system including recirculating data and address registers
US3408633A (en) * 1967-01-09 1968-10-29 Xerox Corp High speed printer system
US3582897A (en) * 1967-10-16 1971-06-01 Mohawk Data Sciences Corp Printer control system
US3672297A (en) * 1970-06-30 1972-06-27 Ibm Printing control device in high speed chain printer with hammers movable to plural print positions
US3699884A (en) * 1971-05-26 1972-10-24 Mohawk Data Sciences Corp Control for chain printer
US3742845A (en) * 1970-11-11 1973-07-03 Honeywell Inf Systems Italia Control system for high-speed printing machines
US3803558A (en) * 1970-11-19 1974-04-09 Gen Electric Print selection system
US3880075A (en) * 1973-12-26 1975-04-29 Burroughs Corp Automatic chain identification method and apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697958A (en) * 1969-12-23 1972-10-10 Gen Electric Font selecting system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850566A (en) * 1953-06-11 1958-09-02 Hughes Aircraft Co High-speed printing system
US3377622A (en) * 1965-04-20 1968-04-09 Gen Electric High speed printer system including recirculating data and address registers
US3408633A (en) * 1967-01-09 1968-10-29 Xerox Corp High speed printer system
US3582897A (en) * 1967-10-16 1971-06-01 Mohawk Data Sciences Corp Printer control system
US3672297A (en) * 1970-06-30 1972-06-27 Ibm Printing control device in high speed chain printer with hammers movable to plural print positions
US3742845A (en) * 1970-11-11 1973-07-03 Honeywell Inf Systems Italia Control system for high-speed printing machines
US3803558A (en) * 1970-11-19 1974-04-09 Gen Electric Print selection system
US3699884A (en) * 1971-05-26 1972-10-24 Mohawk Data Sciences Corp Control for chain printer
US3880075A (en) * 1973-12-26 1975-04-29 Burroughs Corp Automatic chain identification method and apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082944A (en) * 1976-10-12 1978-04-04 Documation, Inc. Band timing generator
US4152981A (en) * 1977-06-03 1979-05-08 Computer Peripherals, Inc. Dual pitch impact printing mechanism and method
US4218754A (en) * 1978-03-29 1980-08-19 Data Printer Corporation Control of high speed printer by low speed microprocessor
US4235167A (en) * 1979-03-12 1980-11-25 Computer Peripherals, Inc. High speed dual pitch impact printer
US4413558A (en) * 1980-10-07 1983-11-08 Hitachi Koki Co., Ltd. Line printer and type carrier for use therein
US4737923A (en) * 1982-03-05 1988-04-12 Hitachi Koki Co., Ltd. Type arrangement data editing apparatus
US4940468A (en) * 1988-01-13 1990-07-10 Petillo Phillip J Apparatus for microsurgery
US20040060261A1 (en) * 2002-06-19 2004-04-01 Daniel Py Sterile filling machine having needle filling station within e-beam chamber

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Publication number Publication date
JPS5847995B2 (ja) 1983-10-26
US4144560A (en) 1979-03-13
CA1056066A (fr) 1979-06-05
JPS5186324A (fr) 1976-07-28

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